diff --git a/README.md b/README.md
index f1540fd..74cbc95 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,7 @@ MQTT is a lightweight client-server publish/subscribe messaging protocol, optimi
 - [Clients](#clients)
 - [Scripting](#scripting)
 - [Interfaces](#interfaces)
+    - [ESP8266-based devices](#esp8266-devices)
     - [Makers](#makers)
     - [Industry](#industry)
     - [Telephony, PBX](#telephony-pbx)
@@ -157,6 +158,17 @@ Core analytics
 
 ### Interfaces
 
+#### ESP8266 devices
+
+There are many inexpensive smart home Wi-Fi devices based on inexpensive ESP8266 chip _(see: [1](https://blakadder.github.io/templates/index.html), [2](https://github.com/xoseperez/espurna#supported-hardware), [3](https://www.letscontrolit.com/wiki/index.php?title=ESP_Hardware))_. Most of them can be reflashed with custom firmware.
+Here are complete firmwares to turn them into MQTT-controlled smart home nodes:
+
+* [ESPEasy](https://www.letscontrolit.com/wiki/index.php?title=ESPEasy) - Turns ESP into a multifunction sensor device for <abbr title="Home automation">HA</abbr> solutions with web-based configuration.
+* [ESPHome](https://esphome.io/) - builds ESP8266/ESP32 firmware from concise YAML descriptions, uploads to and manages flashed devices.
+* [Espurna](https://github.com/xoseperez/espurna) - <abbr title="Home automation">HA</abbr> firmware for ESP8266-based devices with rich web UI and ≈120 devices supported out of the box
+* [Sonoff-Tasmota](https://github.com/arendst/Sonoff-Tasmota) - Firmware for ESP8266 devices with web-based configuration. ≈500 devices supported (not only Sonoffs).
+* [WiFi-IoT](https://wifi-iot.com/p/wiki/) - ESP8266/ESP32 firmware builder. Partly in Russian. Free features are limited.
+
 #### Makers
 
 * [arduinoTemps2mqtt](https://github.com/matbor/arduinoTemps2mqtt) - Arduino sketch, grab One-wire Temperature's and publish to a MQTT broker.
@@ -242,7 +254,6 @@ Core analytics
 * [mqtt2homekit](https://github.com/forty2/mqtt2homekit) - Roughly the opposite of [homekit2mqtt](https://github.com/hobbyquaker/homekit2mqtt): Control your HomeKit-enabled devices with MQTT and without Siri or iPhone.
 * [node-lox-mqtt-gateway](https://github.com/alladdin/node-lox-mqtt-gateway) - Gateway for Loxone™ mini server to communicate with MQTT broker.
 * [smartthings-mqtt-bridge](https://github.com/stjohnjohnson/smartthings-mqtt-bridge) - Bridge between [SmartThings](https://www.smartthings.com/) and MQTT.
-* [Sonoff-Tasmota](https://github.com/arendst/Sonoff-Tasmota) - Firmware for Sonoff devices with native MQTT Support.
 * [xiaomi2mqtt](https://github.com/svrooij/node-xiaomi2mqtt) - bridge between the Xiaomi Smart Home Gateway Aquara and a MQTT server.
 * [zigbee2mqtt](https://github.com/Koenkk/zigbee2mqtt) - Allows you to use your Zigbee devices without the vendors (Xiaomi/TRADFRI/Hue) bridge/gateway.